Improvement in carbureters for gas and air



J. H. BEAN.

Carburetors for Gas and Air.

NO.157;78I, Patentgd Dem-15.1874.

THE GRAPHIC CQEHOTO-LITHJQ 3| 4| PARK PLAOEJLY.

UNITED STATES PATENT OFFICE.

JOSEPH H. BEAN, OF CINCINNATI, OHIO, ASSIGNOR TO HIMSELF AND BENJAMINDAWSON, OF SAME PLACE.

IMPROVEMENT IN CARBURETERS FOR GAS AND AIR.

Specification forming part of Letters Patent No. 15?,781, dated December15, 1874; application filed July 9, 1874.

To all whom it may concern:

Be it known that I, JOSEPH H. BEAN, of Cincinnati, in the county ofHamilton and State of Ohio, have invented a new and useful Improvementin Carbureters; and I do hereby declare that the following is a full andexact description of the same, reference being had to the accompanyingdrawings and to the letters of reference marked thereon.

This invention consists in providing a carbureter, havingseparating-diaphragms in the gasolinechamber, with communicating openings of graduallyincreasin g area from the e11- trance to the discharge,the object being to provide for the expansion of the air as it becomescarbureted, and thus facilitate its movement and materially reduce thepressure.

In the drawings, Figure 1 represents a central sectional elevation of myimproved carbnreter, and Fig. 2 a plan view with the cover removed.

To enable others skilled in the art to make and use my invention, I willnow proceed 'to fully describe its construction and manner of operation.

A represents a case of suitable material, preferably cylindrical inform, which is provided with the separating diaphragms or shelves at a,properly inclined, as shown, to permit the air to ascend in its movementthrough the gasoline. b I) represent a series of communicating openingsin the diaphragms, arranged alternately upon opposite sides, as shown,which gradually increase in area from the entrance to the discharge.These openings are not preferably of a circular form, but consist of anelongated circumferential slot upon the side opposite to the opening inthe diaphragm below. 0 represents the pipe for introducing the air; d,the pipe for introducing the gasoline, and c the pipe for conductingaway the gas.

The operation is as follows: Air being forced through the pipe 0 intothe gasolinechamber, which is supplied with the gasoline through pipe d,the same passes, in its movement, through its various divisions betweenthe diaphragms, and out finally, in the form of gas, through the pipe e.By means of the series of openings of gradually-increasing area, theair, as it expands in volume in consequence of its becoming more andmore perfectly carbureted, is permitted to pass readily, withoutincreasing the pressure in the chamber.

The result thus obtained is important, because an increased pressure inthe chamber interferes with the free movement of the air,

unfavorably affects its power of absorption,

J H. BEAN.

Witnesses:

H. ELLA MATTHEWS, HARRIE G. CLARK.

